結果
問題 | No.2456 Stamp Art |
ユーザー | risujiroh |
提出日時 | 2023-09-01 21:51:20 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,120 ms / 5,000 ms |
コード長 | 3,530 bytes |
コンパイル時間 | 3,390 ms |
コンパイル使用メモリ | 261,236 KB |
実行使用メモリ | 38,964 KB |
最終ジャッジ日時 | 2024-06-11 17:57:10 |
合計ジャッジ時間 | 20,150 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 1,040 ms
38,960 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 3 ms
5,376 KB |
testcase_06 | AC | 1,043 ms
38,964 KB |
testcase_07 | AC | 1,030 ms
38,832 KB |
testcase_08 | AC | 936 ms
38,960 KB |
testcase_09 | AC | 1,065 ms
38,836 KB |
testcase_10 | AC | 1,079 ms
38,788 KB |
testcase_11 | AC | 1,026 ms
38,960 KB |
testcase_12 | AC | 944 ms
38,836 KB |
testcase_13 | AC | 1,120 ms
38,836 KB |
testcase_14 | AC | 1,056 ms
38,964 KB |
testcase_15 | AC | 1,004 ms
38,964 KB |
testcase_16 | AC | 416 ms
21,072 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 227 ms
26,880 KB |
testcase_20 | AC | 997 ms
38,836 KB |
testcase_21 | AC | 839 ms
35,584 KB |
testcase_22 | AC | 1,049 ms
38,912 KB |
testcase_23 | AC | 11 ms
5,376 KB |
testcase_24 | AC | 25 ms
6,296 KB |
testcase_25 | AC | 2 ms
5,376 KB |
ソースコード
#if __INCLUDE_LEVEL__ == 0 #include <bits/stdc++.h> using namespace std; #include __BASE_FILE__ namespace { void solve() { int h, w; cin >> tie(h, w); vector<string> s(h); cin >> s; vector suff(h + 1, vector<int>(w + 1)); for (int i : rep(h)) { for (int j : per(w)) { suff[i][j] = (s[i][j] == '#') + suff[i][j + 1]; } } for (int j : rep(w)) { for (int i : per(h)) { suff[i][j] += suff[i + 1][j]; } } auto check = [&](int m) -> bool { vector f(h + 1, vector<int>(w + 1)); for (int i : rep1(0, h - m)) { for (int j : rep1(0, w - m)) { int c = suff[i][j]; c -= suff[i][j + m]; c -= suff[i + m][j]; c += suff[i + m][j + m]; if (c == m * m) { ++f[i][j]; --f[i][j + m]; --f[i + m][j]; ++f[i + m][j + m]; } } } for (int i : rep(h)) { for (int j : rep(w)) { f[i][j + 1] += f[i][j]; } } for (int j : rep(w)) { for (int i : rep(h)) { f[i + 1][j] += f[i][j]; } } for (int i : rep(h)) { for (int j : rep(w)) { if ((s[i][j] == '#') != (0 < f[i][j])) { return false; } } } return true; }; int ok = 1; int ng = min(h, w) + 1; while (ok + 1 < ng) { int mid = midpoint(ok, ng); (check(mid) ? ok : ng) = mid; } print(ok); } } // namespace int main() { ios::sync_with_stdio(false); cin.tie(nullptr); solve(); } #else // __INCLUDE_LEVEL__ template <class T, class U = T> bool chmin(T& x, U&& y) { return y < x && (x = forward<U>(y), true); } template <class T, class U = T> bool chmax(T& x, U&& y) { return x < y && (x = forward<U>(y), true); } namespace std { template <class T1, class T2> istream& operator>>(istream& is, pair<T1, T2>& p) { return is >> p.first >> p.second; } template <class... Ts> istream& operator>>(istream& is, tuple<Ts...>& t) { return apply([&is](auto&... xs) -> istream& { return (is >> ... >> xs); }, t); } template <class... Ts> istream& operator>>(istream& is, tuple<Ts&...>&& t) { return is >> t; } template <class R, enable_if_t<!is_convertible_v<R, string>>* = nullptr> auto operator>>(istream& is, R&& r) -> decltype(is >> *begin(r)) { for (auto&& e : r) { is >> e; } return is; } template <class T1, class T2> ostream& operator<<(ostream& os, const pair<T1, T2>& p) { return os << p.first << ' ' << p.second; } template <class... Ts> ostream& operator<<(ostream& os, const tuple<Ts...>& t) { auto f = [&os](const auto&... xs) -> ostream& { [[maybe_unused]] auto sep = ""; ((os << exchange(sep, " ") << xs), ...); return os; }; return apply(f, t); } template <class R, enable_if_t<!is_convertible_v<R, string_view>>* = nullptr> auto operator<<(ostream& os, R&& r) -> decltype(os << *begin(r)) { auto sep = ""; for (auto&& e : r) { os << exchange(sep, " ") << e; } return os; } } // namespace std template <class... Ts> void print(Ts&&... xs) { cout << tie(xs...) << '\n'; } inline auto rep(int l, int r) { return views::iota(min(l, r), r); } inline auto rep(int n) { return rep(0, n); } inline auto rep1(int l, int r) { return rep(l, r + 1); } inline auto rep1(int n) { return rep(1, n + 1); } inline auto per(int l, int r) { return rep(l, r) | views::reverse; } inline auto per(int n) { return per(0, n); } inline auto per1(int l, int r) { return per(l, r + 1); } inline auto per1(int n) { return per(1, n + 1); } #endif // __INCLUDE_LEVEL__